Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Bracelet

Reference 232.30.46.21.01.001

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 45.5 is a stunning piece that perfectly blends functionality with style. With its robust 45.5 mm round case, this watch commands attention without being overly ostentatious. The black dial is both sleek and functional, featuring mixed indexes that add a touch of sophistication while ensuring legibility. Crafted from high-quality stainless steel, the case is not only durable but also resistant to corrosion. Under the hood, the Seamaster Planet Ocean is powered by the in-house Omega caliber 8500, a marvel of engineering with 39 jewels and a frequency of 25,200 vibrations per hour. This automatic movement offers not just precision but also longevity, with an impressive 60-hour power reserve. The rotating bezel, marked from 0-60, is a crucial feature for divers, allowing you to keep track of elapsed time while underwater, ensuring your safety and enhancing your diving experience. With a water resistance of 600 meters, this watch is built for serious diving, making it an ideal companion for any underwater adventure.
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MSRP: $6,200
Market Price: $3,391

Key Features

  • 45.5 mm round case made from high-quality stainless steel
  • In-house Omega caliber 8500 movement with 39 jewels and 60-hour power reserve
  • Rotating bezel with dive scale from 0-60 for precise time measurement
  • Sapphire crystal glass for scratch resistance and clear visibility
  • Water resistance of 600 meters for serious diving capabilities

Specifications

Brand
Omega
Family
Seamaster Planet Ocean
Model
Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Black / Bracelet
Reference
232.30.46.21.01.001
Movement
8500
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
Stainless Steel 45.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
600

Current Listings

[WTS] Omega Seamaster Planet Ocean 2201.51 42mm Box and Card S - $2,950

Omega Seamaster Planet Ocean 2201.51 42mm Box and Card S - $2,950

Omega - 2201.51 · $2,950
Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition for its age
  • Case size: 42mm diameter
  • Water resistance: 200m depth rating
  • Bracelet length: up to 7-7.25 inch wrists
Posted at
Apr 15, 2026, 4:32 AM
Active
[WTS] Omega Seamaster Planet Ocean 600M 217.32.42.21.01.001 (Feb 2026) – $6800

Omega Seamaster Planet Ocean 600M 217.32.42.21.01.001 (Feb 2026) – $6800

This Omega Seamaster Planet Ocean 600M is a stunning, bold, and sporty watch that feels refined enough to wear anywhere.

  • Condition: Brand new
  • Retail Price: $8,600 MSRP in the US
  • Shipping Included: true
  • Payment Methods: Zelle or PayPal
Posted at
Apr 14, 2026, 4:31 PM
Active
[WTS] Omega Seamaster Planet Ocean 600M 232.92.42.21.03.001 42mm Titanium Blue 2020

Omega Seamaster Planet Ocean 600M 232.92.42.21.03.001 42mm Titanium Blue 2020

A blue dial Omega Seamaster Planet Ocean 600M with a 42mm titanium case, featuring a Calibre 8500 automatic movement and 600m water resistance.

  • Condition: Excellent pre-owned condition with light wear
  • Case size: 42mm diameter
  • Material: titanium
  • Movement: Calibre 8500, Co-Axial, automatic
Posted at
Apr 12, 2026, 1:48 PM
Active
[WTS] Omega Seamaster Planet Ocean 232.30.42.21.01.003 – 42mm

Omega Seamaster Planet Ocean 232.30.42.21.01.003 – 42mm

This is a listing for an Omega Seamaster Planet Ocean watch.

  • Model name: Planet Ocean
  • Case size: 42mm
Posted at
Apr 12, 2026, 12:51 PM
Active
[WTS] Omega Seamaster Planet Ocean 215.30.44.21.01.002 – 43.5mm – Full Set

Omega Seamaster Planet Ocean 215.30.44.21.01.002 – 43.5mm – Full Set

This Omega Seamaster Planet Ocean is a 43.5mm watch with additional details provided.

  • Case size: 43.5mm
Posted at
Apr 12, 2026, 12:15 PM
Active
[WTS][US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

[US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

A Omega Seamaster Planet Ocean Chrono 600m watch featuring a black dial and measuring 45.5mm in diameter.

  • Condition: Fantastic with minor hairlines
  • Case Size: 45.5mm diameter
  • Depth Rating: 600m
Posted at
Apr 12, 2026, 9:47 AM
Active
[wts] Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

The Omega Seamaster Planet Ocean Orange 8500 features a 45.5mm case, gray bezel that was swapped for an OEM orange one, and comes with a mesh/milanese bracelet.

  • Condition: Near mint
  • Bracelet type: Omega mesh/milanese
  • Case size: 45.5mm
  • Bezel color: Orange
Posted at
Apr 11, 2026, 5:11 PM
Active
[wts] Omega Seamaster Planet Ocean 8500 45.5mm 232.32.46.21.01.005

Omega Seamaster Planet Ocean 8500 45.5mm 232.32.46.21.01.005

Additional Details: Omega Seamaster Planet Ocean 8500 45.5mm comes with boxes and papers.

  • Condition: Great
  • Case Size: 45.5mm diameter
  • Shipping: Shipped via FedEx within the US
Posted at
Apr 11, 2026, 5:08 PM
Active
[wts] Rare Omega Seamaster Planet Ocean 2500D 45.5mm 2200.50.00

Rare Omega Seamaster Planet Ocean 2500D 45.5mm 2200.50.00

Omega - 2200.50.00 · $3,900
A rare Omega Seamaster Planet Ocean model, featuring a 45.5mm case size and coming with original boxes and warranty.

  • Condition: Excellent
  • Case Diameter: 45.5mm
Posted at
Apr 11, 2026, 5:05 PM
Active